I am new to matplotlib, and have get stuck in colormaps.
In matplotlib how do I get the whole array of RGB colors for a specific colormap, let's say for "hot". For example if I was in MATLAB I would have just done this:
# in matlab
c = hot(256);
disp(c)
Any ideas?
You can look up the values by calling the colormap as a function, and it accepts numpy arrays to query many values at once:
In [12]: from matplotlib import cm
In [13]: cm.hot(range(256))
Out[13]:
array([[ 0.0416 , 0. , 0. , 1. ],
[ 0.05189484, 0. , 0. , 1. ],
[ 0.06218969, 0. , 0. , 1. ],
...,
[ 1. , 1. , 0.96911762, 1. ],
[ 1. , 1. , 0.98455881, 1. ],
[ 1. , 1. , 1. , 1. ]])